astrobleme
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astrobleme
[′as·trō‚blēm] (geology)
A circular-shaped depression on the earth's surface produced by the impact of a cosmic body.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
For instance, Gravbeg-1 (Sweden) and Vorotilov (Russia) boreholes were drilled within
astroblemes, i.e.
and Suk, M.: 1997, On the existence of the "Sevetin
astrobleme", South Bohemia, Czech Republic, Krystalinikum, 23, 83-94.
Even after the famous 1980 article by Nobel laureate Luis Alvarez and colleagues, which identified a chemical signal of extraterrestrial origin in the last few centimeters of Cretaceous strata, the Yucatan site was initially overlooked in the otherwise frenzied worldwide search for a corresponding "
astrobleme" (literally, "star wound").
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